OLS : Record


Main Title Calculations of day-night levels (Ldn) resulting from civil aircraft operations
Author Bishop, D. E.; Hays, A. P.; Reddingius, N. H.; Seidman., H.
CORP Author Bolt Beranek and Newman, Inc., Canoga Park, Calif.;Environmental Protection Agency, Washington, D.C. Office of Noise Abatement and Control.
Publisher Environmental Protection Agency, Office of Noise Abatement and Control ;
Place Published Washington, DC :
Year Published 1977
Report Number EPA 550/9-77-450;68-01-3218; BBN-3157; EPA-68-01-3218
Stock Number PB-266 165
Subjects Aircraft noise; Civil aviation; Airports; Computation; Level(Quantity); Diurnal variations; Day; Night; Intensity; Handbooks; Estimating; Runways; Charts; Takeoff; Turbofan engines; Airplanes; Classifications; Day night levels; Propeller aircraft
Subject Added Ent Airplanes--Noise--Handbooks, manuals, etc; Aeronautics, Commercial--Statistics--Handbooks, manuals, etc
Library   Call Number Additional Info Location Date Modified
NTIS PB-266 165 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation vii, 370 p. : ill., graphs ; 28 cm.
Abstract A method is described for calculating the values of day/night noise level (Ldn), at a point, due to aircraft operations from an airport. Two levels of sophistication are detailed; (1) at the basic level, such factors as type of takeoff and landing procedure are considered, but range and non-standard glide slopes are excluded, (2) the more detailed method takes account of the latter parameters. The procedure used is to locate the position of the point in question, relative to the runway and aircraft flight track. A series of charts give Ldn values for different types of aircraft in terms of the distance parameters. Adjustments are made to the single event noise levels to account for frequency of operations and the adjusted levels are added logarithmically to represent all of the classes of aircraft using the airport.
Notes "EPA 550/9-77-450." "January 1977." Prepared by Bolt Beranek & Newman, Inc. under contract no. 68-01-3218. Includes appendices and index. Bibliography: p. 71.
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Noise Abatement and Control. ; Bolt, Beranek, and Newman, inc. ; United States. Environmental Protection Agency. Office of Noise Abatement and Control. ; Bolt, Beranek, and Newman, inc.
NTIS Prices PC A16/MF A01
BIB Level m
Medium m
OCLC Time Stamp 19950504115006
Cataloging Source OCLC/T
Language ENG
Origin NTIS
OCLC Rec Leader 01445nam 2200337Ka 45010